Jig.



G. B. SHIPLEY.

JIG. APPLICATION FILED JAN. 23, 1907:

PatentedApr. 20, 1909.-

2 SHEETS-SHEET 1L JNVENTOR G. B. SHIPLEY.

JIG.

API LICATION FILED JAN. 23, 1907.

Patented Apr. 20, 1909.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

GRANT B. SHIPIIEY, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO ALLIS-CHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

JIG.

Application filed January 23, 1907.

Specification of Letters Patent.

To all whom it may concern:

Be it known that 1, GRANT B. SHIPLEY, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of lVisconsin, have invented a certain new and useful Jig, of which the following is a specification.

This invention relates to jigs for dressing ores and similar materials, the object being to provide a simple, strong device for this purpose which will be composed of as few parts as possible consistent with strength and rigidity.

This invention relates specifically to that class of jigs in which a comparatively long hutch, say thirty or forty feet, contains a jigging sieve or screen .of approximately the same length as the hutch, said screen being so supported that the driving mechanism moves said screen bodily with the ore andragging supported thereon in such a manner that the ores are separated from the lighter material or gangue and the different varieties are separated and classified as far as is practicable with this type of On the drawings which accompany this specification and form a part thereof, and on which the same reference characters are used to indicate the same elements wherever they may appear in each of the several figures, Figure 1. represents an elevation of a jig embodying this invention, parts being broken away to show the interior arrangement thereof. Fig. 2 represents a plan view of the jig and part of the sieve or screen box, certain parts being broken away to show more clearly the arrangement thereof. Fig. 3 is an elevation in section of the machine on the line a-a of Fig. 1, looking in the direction indicated by the small arrow designated by A. Fig. 4 is an elevation in section similar to Fig. 3, the view being taken on the line a.a of Fig. 1, but looking in the direction indicated by the arrow designated by B.

The numeral 1 designates the hutch or box. of the jig which is preferably in the construction illustrated formed of angle irons and metal plates suitably secured together and adapted to rest upon any suitable foundation or support. A detailed description of the specific construction of this box or hutch is considered unnecessary as it difiers in no material Way from any strongly built tank or box of similar general design.

The numeral 2 designates generally the sieve or screen which is adapted to be suspended within the hutch, this sieve being composed of the rectangular box 3, open at the top and bottom, but the bottom of the box being provided with screen supporting and strengthening cross ribs 4, upon which are adapted to be placed the sections of screen material which are usuallyprovided with different sized apertures or meshes, these screen or sieve members being retained in place by the ragging boxes 5, which. are. in effect boxes open at the top and bottom, provided with cross .members, these corresponding to and located opposite the strengthening cross members 4, said boxes being securely held against the screen to retain it in place by any suitable means, as by the wedges 7 and blocks 8.

Secured to the sides of the box 3 are the brackets 9 to which brackets are secured the I-beams 10 and 11, each pair of I-beams thus secured to said box being bolted at their ends to a member 12 which is provided with a projecting pintle by which the screen is supported by arms 13, which are pivotally secured at their lower ends to levers 14 and cranks 140, these cranks being similar in all respects to the short arms of levers 14 which are provided with fulcrum shafts 15 between the points at which the arms 13 are connected with the same, and a block 16 to which the other ends of these levers are secured. Secured also to the pintles of the blocks 12 at one end of the jig are the arms 17, which arms are provided with a portion which extends through a block 18 adapted tobe adjustably secured by a bolt 19 at a predetermined point upon a quadrant 20, said quadrant 20 being provided with an ordinary form of undercut slot 21 with which the bolt 19 is adapted to coact to hold the block 18 in its predetermined. position. The arms 17 are provided with a stop 22 on one side of the block 18, which stop is adapted to limit the extent of movement of the arm 17 through an aperture in said block in one direction, and on the opposite side of said block said arms are provided with an adjustable stop, as a screw 23, by which the amount of movement of said arms in the op posite direction can be determined.

The fulcrum members for the levers 14 are made in the form of shafts 15 and are passed entirely through the hutch from side to side thereof, having bearings in collars 25 which are securely fastened to the sides of the hutch, said shafts being protected from con tact with water and material within the hutch by the inclosing pipes 26.

The numeral 27 designates a band wheel to which power may be transmitted by a belt, and this band wheel is secured to a shaft 28, which passes through the body of the hutch similarly to the shafts 15, being supported by collars 25, and being protected Within the hutch by a section of pipe 26.

Secured to the side of the hutch opposite to that on which the band wheel 27 is located, are I-beams 29 to afford a firm support for the mechanism for rocking the levers 14, which will now be explained.

The numeral 30 designates a rod which is guided by the guides 31, 32, secured to the I- beams 29, and to this rod is secured the block 16, to which block are pivotally secured ends of the levers 1 1. Secured also to the I- beams 29 is the casing through which the rod 30 works and within which is located the cam 34 which is secured to the shaft 28.

The numeral 35 designates a collar either secured to the rod 30, or formed as an integral part thereof, with which the cam 34 is adapted to contact in order to move said rod downwardly.

The casing 33 is made in sections, as clearly shown by Fig. 4, and the rod 30 passes through stuffing boxes 36, which are practically oil tight, and the casing is provided with an a erture 37 through which oil or similar lulgricant may be introduced into said casing up to about the level of said aperture, as shown by Fig. 1, so that the cam 3% runs in oil.

On top of the rod 30 is located a receptacle 38 which may contain rubber, cork, or similar substance, which is designed to relieve the shock of the impact of the rod 30 against an adjusting screw 39, by which the length of stroke of the rod 30 under the influence of the cam 34 is adjusted.

The numeral 40 designates the usual water supply pipe provided with valve controlled branches leading to several of the compartments into which the body of the hutch is divided by partitions 11 extending from the bottom thereof into close proximity to the box The numeral 42 designates the usual discharge openings which are provided with gates, not shown, for controlling the discharge of ore therethrough.

The numeral 13 designates a downwardly projecting lip upon the discharge end of the screen box 3 to direct the gangue into the compartment 44; during the action of the apparatus.

The numeral 45 designates a slime separating plate or partition which is designed to separate the liner material or slimes from the coarser material discharged from the screen.

The numeral 16 designates the overflow outlet provided with the removable bars 4.7 by which the height of the water in the hutch is regulated; and 18 represents a valve controlled draw-off for the slimes which have accumulated on the upper surface of the plate 45.

The numeral designates deflectors which extend to a point within the hutch over the screen, and 51 designates spacing members which serve to center the sieve box and maintain it in position.

The operation of the apparatus is as follows: The material being fed upon the screen at the left hand end of the apparatus, as shown by Fig. 1, the ragging being properly disposed upon the screen, if ragging be necessary for the specific ore or ores under treat ment, and the hutch being supplied with water through the pipe 40, said water being permitted to. enter to a sufficient depth to cover the screen and the ores thereon, the blocks 18 and the screw 39 being adjusted to permit of the extent of motion desired for the ore or ores under treatment, power being supplied by belt to the band wheel 27 to rotate the cam 34 in the direction indicated by the arrow, Fig. 1, the action will be as follows: The cam will bear against the collar 35, push the rod 30, block 16 and connected ends of the levers 14 down, which will swing the levers and cranks 140 about their fulcrums 15, lifting the arms 13 and sieve box with ore therein up until the screws 23 contact with the blocks 18, when, if the movement be continued, the arms 17 will swing said blocks 18 about bolts 19 to the limit of movement. When the toe of cam 34 passes off from the collar 35, the weight of the screen and the ore supported thereby will cause it to drop, and in dropping, arms 17 will drop through the blocks 18 until arrested by the stops 22, then the blocks 18 will rotate about the bolts 19, permitting the screen to drop still farther until the arms 13 have forced the ends of the levers to which they are attached down to such an extent that the opposite ends of the levers by rising, have forced the material in the box 38 against the screw 39, by which further movement is arrested.

What is claimed and desired to secure by Letters Patent is:

1. The combination with a hutch, of a sieve supported therein, levers for supporting said sieve, means a portion of which extends through said hutch for operating said levers, a bearing for said operating means comprising a collar, and a pipe extending through the hutch and guarding said portion of said operating means.

2. The combination with a hutch tank,.of a sieve supported therein, levers for supporting said sieve, means for operating said levers, fulcrum shafts for said levers, said fulcrum shafts being passed through and supported by said tank, and pipes located within said tank and surrounding said fulcrum shafts.

3. Ina jig, the combination of a hutch tank, a sieve located therein, fulcrum shafts passed through said tank, pipes located within said tank and surrounding said shafts, cranks secured to said shafts, levers also secured to said shafts, arms supporting said sieve from said cranks and levers, a vertically movable block also secured to said levers, means for moving said block, and means for compelling the sieve to follow a predetermined 1F- path in its movements.

In testimony whereof, I affix my signature in the presence of two Witnesses.

GRANT B. SHIPLEY. Witnesses:

H. 0. (Lisa, FRANK E. DENNETT. 

